The Little Rock Resources Ltd. Management oversees the implementation of strategic plans and growth priorities that provide long-term value. Our Management knows what it takes to achieve operational excellence.

Thomas J. Greschner
Chairman, President & CEO
Tom was most recently a co-founder, President and CEO of Nexxco Energy Ltd. from September 2012 to October 2015, a private junior oil and gas company that was sold to Burgess Creek Exploration. Prior to Nexxco, he was the Chairman, President and CEO of Emerge Oil & Gas Inc., a public junior oil and gas company he co-founded in 2008. Together with his management team, Tom grew production to 6,000 boe/day and sold the company to Twin Butte Energy Ltd. in January 2012.
Thomas J. Greschner
Chairman, President & CEO
Tom was most recently a co-founder, President and CEO of Nexxco Energy Ltd. from September 2012 to October 2015, a private junior oil and gas company that was sold to Burgess Creek Exploration. Prior to Nexxco, he was the Chairman, President and CEO of Emerge Oil & Gas Inc., a public junior oil and gas company he co-founded in 2008. Together with his management team, Tom grew production to 6,000 boe/day and sold the company to Twin Butte Energy Ltd. in January 2012.
Previously, Tom was also a co-founder and Vice President, Production at Galleon Energy Inc. from 2003 to 2007, where he lead a team that grew production to 14,000 boe/day during his tenure to a market cap of over $1 billion dollars. Tom also was instrumental in growing production from 2,000 boe/day to 8,000 boe/day in less than two years at KeyWest Energy Corporation. He spent the majority of his early career at Renaissance Energy Ltd. with increasing roles of responsibility. Tom has over 30 years’ of experience in production operations, drilling and completions, facility and pipeline construction.

Jamie Jeffs, CPA, CA
Vice President, Finance & CFO
Jamie has over 25 years of accounting and finance experience with the last 11 years in the oil and gas industry. Jamie previously served as Vice President, Finance and CFO of Fortaleza Energy, Alvopetro and Fortress Energy. Prior to these appointments, he was Vice President, Finance for an oilfield services company and Senior Manager in the assurance division of KPMG LLP.
Jamie Jeffs, CA
Vice President, Finance & CFO
Jamie has over 25 years of accounting and finance experience with the last 11 years in the oil and gas industry. Jamie previously served as Vice President, Finance and CFO of Fortaleza Energy, Alvopetro and Fortress Energy. Prior to these appointments, he was Vice President, Finance for an oilfield services company and Senior Manager in the assurance division of KPMG LLP.
Jamie holds a Bachelor of Mathematics degree from the University of Waterloo and is a Chartered Accountant.

Mike Twomey, P.LAND
Vice President, Land
Mike has spent the past 11 years as Vice President, Land for Regent Resources Ltd., a Calgary based private oil and gas exploration company. He was responsible for all land department functions including land negotiations and strategic development initiatives for all exploration and exploitation activities. He was key in moving Regent from a non-operated gas focused company to a balanced portfolio of operated oil and gas assets. Prior to Regent, Mike had a 9 year career at Samson Canada Ltd. as Manager, Surface, Mineral Land and Joint Venture.
D. Mike Twomey
P. Land, Vice President, Land
Mike has spent the past 11 years as Vice President, Land for Regent Resources Ltd., a Calgary based private oil and gas exploration company. He was responsible for all land department functions including land negotiations and strategic development initiatives for all exploration and exploitation activities. He was key in moving Regent from a non-operated gas focused company to a balanced portfolio of operated oil and gas assets. Prior to Regent, Mike had a 9 year career at Samson Canada Ltd. as Manager, Surface, Mineral Land and Joint Venture.
He also held positions within Land and Joint Venture departments at Amerada Hess Canada Ltd. and Imperial Oil Resources from 1990 to 1996. Prior thereto, Mike held land roles at Texaco Canada Resources from 1984 to 1990. Mike has over 32 years’ experience in all aspects of the corporate development, land and joint venture sides of the business. Mike is a member of the Canadian Association of Petroleum Landmen and holds a P. Land Designation.

Claude Gamache, P.GEOPH.
Vice President Exploration
Claude joined Little Rock in November 2016 and has over 27 years of experience in oil & gas exploration. He was most recently Vice President, Geosciences at Twin Butte Energy, which merged with Emerge Oil & Gas in January 2012. As a co-founder at Emerge, he held the position of Vice President, Exploration since its inception in 2008. Throughtout the 8 years at both companies, Claude was an integral part in growing production from 60 boe/day to over 22,000 boe/day.
Claude M. Gamache, P. Geoph.
Vice President Exploration
Claude joined Little Rock in November 2016 and has over 27 years of experience in oil & gas exploration. He was most recently Vice President, Geosciences at Twin Butte Energy, which merged with Emerge Oil & Gas in January 2012. As a co-founder at Emerge, he held the position of Vice President, Exploration since its inception in 2008. Throughtout the 8 years at both companies, Claude was an integral part in growing production from 60 boe/day to over 22,000 boe/day.
Prior to Emerge, Claude held positions at Harvest Energy Trust, he was co-founder of Reveal Resources Ltd. and Chief Geophysicist at Baytex Energy Trust. Claude graduated in 1989 from the University of Alberta with a BSc. in Geophysics and is an active member of APEGA and CSEG.

Dwayne Schielke, P.TECH., ENG.
Vice President Operations
Dwayne is a Professional Technologist with over 20 years’ of experience in the oil and gas industry. Prior to Little Rock Resources, Dwayne held many roles within Husky Energy over an 11 year span. Most notable, looking after field operations for the Plains Region of over 50,000 boe/day. His tenure at Renaissance Energy and Primewest Energy were technical positions in production operations, facility design and construction, reservoir evaluation and drilling and completions.
Dwayne Schielke, P.Tech (Eng)
Operations Manager
Dwayne is a Professional Technologist with over 20 years’ of experience in the oil and gas industry. Prior to Little Rock Resources, Dwayne held many roles within Husky Energy over an 11 year span. Most notable, looking after field operations for the Plains Region of over 50,000 boe/day. His tenure at Renaissance Energy and Primewest Energy were technical positions in production operations, facility design and construction, reservoir evaluation and drilling and completions.
Dwayne also spent time overseas, on-shore and off-shore with Baker Hughes as part of a task force that analyzed and investigated surface/downhole problems incorporating Baker Hughes’ product lines. Dwayne is a member of ASET holding the professional technologist designation with the APEGA/ASET joint board.